W: What can I do for youM: I’d like to exchange this sweater.W: What seems to be the matterM: Well, you see I got this as a birthday present, but it’s the wrong size, and what’s more, I really don’t like the color.W: Do you have the receiptM: Yes.W: Can I have a look at it, pleaseM: Certainly. Why does the man want to exchange the sweater() A: It doesn’t fit him and the color isn’t satisfactory. B: It is a birthday present from his friend. C: He has got the receipt.